X0508 4 2026-02-26 0 0001632127 Cable One, Inc. CABO 0002113239 Holanda James A 210 EAST EARLL DRIVE PHOENIX AZ 85012 1 1 0 0 Chief Executive Officer 0 RSUs 2026-02-26 4 A 0 44004 0 A Common Stock, par value $0.01 44004 44004 D Each service-based restricted stock unit (an RSU) represents a contingent right to receive one share of Cable One, Inc. (the Company) common stock, par value $0.01 (Common Stock). The grant of RSUs is an inducement grant made in accordance with the New York Stock Exchange Listed Company Manual Rule 303A.08 in connection with the Reporting Persons commencement of employment with the Company. The Reporting Person also received a grant of performance-based restricted stock units (PSUs) made in accordance with the New York Stock Exchange Listed Company Manual Rule 303A.08. The maximum number of Common Stock that may be delivered to the Reporting Person for this inducement grant pursuant to the grants of RSUs and PSUs is 169,000 in the aggregate. Represents a grant of 44,004 RSUs on February 26, 2026, which generally vest in equal installments on each of the first three anniversaries of the grant date, subject to their continued employment with the Company through such date. /s/ Christopher J. Arntzen for James A. Holanda 2026-02-26